<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        html,body{
            height: 100%;
        }
        .flex{
            height: 40vh;
            background-color: honeydew;
            display: flex;
            justify-content: space-around;
            align-items: center;
        }
        .flex .item{
            flex:1;}
        .item{
            width: 600px;
            background-color: indianred;
        }

        .grid{
            display: grid;
        }
    </style>
</head>
<body>
    /mnt/c/Users/H/AppData/Local/Programs?Microsoft VS Code/bin
    <div class="flex">
        <p class="item"> item1 </p>

        <p class="item"> item2 </p>
        <span class="item"> item3</span>
    </div>

    <div class="grid">
        <p class="item"> item1 </p>

        <p class="item"> item2 </p>
        <span class="item"> item3</span>
    </div>
</body>
</html>